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/*
* Copyright (c) 2015 Andrew Kelley
*
* This file is part of zig, which is MIT licensed.
* See http://opensource.org/licenses/MIT
*/
#ifndef ZIG_TOKENIZER_HPP
#define ZIG_TOKENIZER_HPP
#include "buffer.hpp"
#include "bigint.hpp"
#include "bigfloat.hpp"
enum TokenId {
TokenIdAmpersand,
TokenIdArrow,
TokenIdAtSign,
TokenIdBang,
TokenIdBarBar,
TokenIdBarBarEq,
TokenIdBinOr,
TokenIdBinXor,
TokenIdBitAndEq,
TokenIdBitOrEq,
TokenIdBitShiftLeft,
TokenIdBitShiftLeftEq,
TokenIdBitShiftRight,
TokenIdBitShiftRightEq,
TokenIdBitXorEq,
TokenIdCharLiteral,
TokenIdCmpEq,
TokenIdCmpGreaterOrEq,
TokenIdCmpGreaterThan,
TokenIdCmpLessOrEq,
TokenIdCmpLessThan,
TokenIdCmpNotEq,
TokenIdColon,
TokenIdComma,
TokenIdDash,
TokenIdDivEq,
TokenIdDocComment,
TokenIdContainerDocComment,
TokenIdDot,
TokenIdDotStar,
TokenIdEllipsis2,
TokenIdEllipsis3,
TokenIdEof,
TokenIdEq,
TokenIdFatArrow,
TokenIdFloatLiteral,
TokenIdIntLiteral,
TokenIdKeywordAlign,
TokenIdKeywordAllowZero,
TokenIdKeywordAnd,
TokenIdKeywordAnyFrame,
TokenIdKeywordAnyType,
TokenIdKeywordAsm,
TokenIdKeywordAsync,
TokenIdKeywordAwait,
TokenIdKeywordBreak,
TokenIdKeywordCatch,
TokenIdKeywordCallconv,
TokenIdKeywordCompTime,
TokenIdKeywordConst,
TokenIdKeywordContinue,
TokenIdKeywordDefer,
TokenIdKeywordElse,
TokenIdKeywordEnum,
TokenIdKeywordErrdefer,
TokenIdKeywordError,
TokenIdKeywordExport,
TokenIdKeywordExtern,
TokenIdKeywordFalse,
TokenIdKeywordFn,
TokenIdKeywordFor,
TokenIdKeywordIf,
TokenIdKeywordInline,
TokenIdKeywordNoInline,
TokenIdKeywordLinkSection,
TokenIdKeywordNoAlias,
TokenIdKeywordNoSuspend,
TokenIdKeywordNull,
TokenIdKeywordOr,
TokenIdKeywordOrElse,
TokenIdKeywordPacked,
TokenIdKeywordPub,
TokenIdKeywordResume,
TokenIdKeywordReturn,
TokenIdKeywordStruct,
TokenIdKeywordSuspend,
TokenIdKeywordSwitch,
TokenIdKeywordTest,
TokenIdKeywordThreadLocal,
TokenIdKeywordTrue,
TokenIdKeywordTry,
TokenIdKeywordUndefined,
TokenIdKeywordUnion,
TokenIdKeywordUnreachable,
TokenIdKeywordUsingNamespace,
TokenIdKeywordVar,
TokenIdKeywordVolatile,
TokenIdKeywordWhile,
TokenIdLBrace,
TokenIdLBracket,
TokenIdLParen,
TokenIdQuestion,
TokenIdMinusEq,
TokenIdMinusPercent,
TokenIdMinusPercentEq,
TokenIdModEq,
TokenIdNumberSign,
TokenIdPercent,
TokenIdPercentDot,
TokenIdPlus,
TokenIdPlusEq,
TokenIdPlusPercent,
TokenIdPlusPercentEq,
TokenIdPlusPlus,
TokenIdRBrace,
TokenIdRBracket,
TokenIdRParen,
TokenIdSemicolon,
TokenIdSlash,
TokenIdStar,
TokenIdStarStar,
TokenIdStringLiteral,
TokenIdMultilineStringLiteral,
TokenIdSymbol,
TokenIdTilde,
TokenIdTimesEq,
TokenIdTimesPercent,
TokenIdTimesPercentEq,
TokenIdCount,
};
struct TokenFloatLit {
BigFloat bigfloat;
// overflow is true if when parsing the number, we discovered it would not fit
// without losing data
bool overflow;
};
struct TokenIntLit {
BigInt bigint;
};
struct TokenStrLit {
Buf str;
};
struct TokenCharLit {
uint32_t c;
};
struct Token {
TokenId id;
size_t start_pos;
size_t end_pos;
size_t start_line;
size_t start_column;
union {
// TokenIdIntLiteral
TokenIntLit int_lit;
// TokenIdFloatLiteral
TokenFloatLit float_lit;
// TokenIdStringLiteral, TokenIdMultilineStringLiteral or TokenIdSymbol
TokenStrLit str_lit;
// TokenIdCharLiteral
TokenCharLit char_lit;
} data;
};
// work around conflicting name Token which is also found in libclang
typedef Token ZigToken;
struct Tokenization {
ZigList<Token> *tokens;
ZigList<size_t> *line_offsets;
// if an error occurred
Buf *err;
size_t err_line;
size_t err_column;
};
void tokenize(Buf *buf, Tokenization *out_tokenization);
void print_tokens(Buf *buf, ZigList<Token> *tokens);
const char * token_name(TokenId id);
bool valid_symbol_starter(uint8_t c);
bool is_zig_keyword(Buf *buf);
#endif
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